The most common and most likely answer to this crossword clue is the 9 letter word EPHEDRINE
E
P
H
E
D
R
I
N
E
More clues leading to the result EPHEDRINE
Buddy explains!

The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does EPHEDRINE mean?
EPHEDRINE noun- An alkaloid, found in some species of Ephedra shrubs (or prepared synthetically).
- A medication whose active ingredient is ephedrine, used as a sympathomimetic drug.